mako: Add saturation control to gamma calibration

This change depends on http://review.cyanogenmod.org/#/c/51332/ and
http://review.cyanogenmod.org/#/c/51499/

Change-Id: Icd1e6600c6f0c88f1ae9c2224d17af5daeca77ad
Signed-off-by: amperific <amperific@gmail.com>

Conflicts:
	cmhw/org/cyanogenmod/hardware/DisplayGammaCalibration.java
	overlay/packages/apps/Settings/res/values/arrays.xml